What are the characteristics of residential buildings in North Korea? ?

-& gt； North Korea's residential buildings have courtyards with black tiles and white walls. Generally, Vitex negundo or small trees are used as fences. Near the east and west sides of the house, there are two or three meters wide openings to facilitate access. The southern part of the yard is used as a vegetable field, which can not only eat fresh vegetables in season, but also decorate and beautify the yard. Flowers and plants are often planted in the front aisle and vegetable fields, and fruit trees are often planted on the east and west sides of the fence. When I entered the room, my first feeling was that there was a big kang. Kang is the main indoor activity space for Koreans. You can see some relatives and friends drinking around the table, some women working and some children playing on the kang. When the kang is big, the heat dissipation area will be large, and the room will be particularly warm in winter. ?